Owners of the 8-mw Trojes project in Mexico and the 11.7-mw Matanzas project in Guatemala are approved to sell carbon emissions credits, under the United Nations’ Clean Development Mechanism (CDM).
The Executive Board of the U.N. Framework Convention on Climate Change approved both projects.
The Trojes plant is at an irrigation dam on the Barreras River in Mexico’s Jalisco State. Two private firms, Impulsora Nacional de Electricidad S. de R.L. de C.V. (INELEC) and Hidroelectricidad del Pacifico S. de R.L. de C.V., developed the project. Trojes is projected to avoid 20,550 metric tons of carbon dioxide emissions per year.
Matanzas in Guatemala includes a diversion dam with a small reservoir that collects flows from the Matanzas and San Isidro rivers in Baja Verapaz State. Tecnoguat S.A., a subsidiary of ENEL Latin America, completed the project in 2002.
The plant generates an average of 46,000 megawatt-hours (mwh) and offsets 38,493 metric tons of carbon emissions each year. Tecnoguat said it would use revenues from the sale to preserve the Matanzas River Basin and to construct a compensation reservoir at the tailrace that would allow the use of on-peak water flows for irrigation downstream.
Chilatan seeks CDM approval
Corporacion Mexicana de Hidroelectricidad (Comexhidro) and Proveedora de Electricidad de Occidente S. de R.L. de C.V. seek CDM approval to sell carbon emissions credits from the 14-mw Chilatan project in Mexico. The project, on line since November 2005, is on the Corongoros River in Jalisco State.
The powerhouse, downstream of the Chilatan irrigation dam, features two 7-mw turbine-generators. Generating an average of 61,490 mwh per year, the units are expected to offset 684,390 tons of carbon dioxide over 21 years.
Mali studies viability of 13.5-mw Markala
The Mali Ministry of Mines, Energy and Water is exploring the viability of developing the 13.5-mw Markala project on the Niger River. If the project advances, it would be constructed at an existing dam 50 kilometers north of Segou.
Burgess & Niple Inc. of the United States is performing the feasibility study under a US$299,305 grant from the U.S. Trade and Development Agency (TDA). Burgess & Niple is refining assessments from earlier studies, and finalizing a technical and financial design for soliciting bids for an engineering-procurement-construction contract.
TDA estimates project development could cost US$36 million.
Stellba refurbishes units at 2.16-mw Burgkhammer
Stellba Hydro GmbH & Co. is refurbishing two turbine-generators at Vattenfall Europe Generation AG’s 2.16-mw Burgkhammer hydro project on Germany’s Saale River.
Burgkhammer has been operating since 1933.
Stellba, of Heidenheim, Germany, is refurbishing two Kaplan turbines and generators. Work includes runner enlargement, hub reduction, and reshaping runners.
CKD Blansko equips Peru’s 10-mw Poechos 2
CKD Blansko Holding a.s. of the Czech Republic is supplying generating equipment for the 10-mw Poechos 2 hydro project, owned by Sindicato Energetico S.A. of Peru.
Blansko is designing, manufacturing, and supervising the installation and commissioning of two horizontal S-type Kaplan turbines. The units are being installed next to the existing 15.2-mw Poechos project. This plant is at the toe of the Poechos irrigation dam on the Chira River in Piura District, near the Ecuador border.
Sindicato is approved to sell carbon emissions credits from Poechos under the United Nations’ Clean Development Mechanism.
Empresa Hidro Energia S.A. of Guatemala is supplying equipment to 212-kw El Naranjo in Nicaragua. The company will install a horizontal Pelton turbine, synchronous generator, and other equipment.
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